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Weather & Climate in Hertain, Belgium
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Hertain experiences four distinct seasons with an average annual temperature of 54°F (12°C). Winters average 42°F in January while summers reach 65°F in July. The area gets 213 sunny days per year. Annual precipitation totals 40.0 inches. The area receives 4.0 inches of snow annually. The city sits at an elevation of 102 feet.
Temperature
42°F Jan (5°C)
65°F Jul (19°C)
| Annual Average | 53.7°F |
| 1% below US avg | |
| January Average | 42°F (5°C) |
| July Average | 65°F (19°C) |
| Sunny Days | 213 days/yr |
Geography
| Elevation | 102 ft (31 m) |
| Area | 4.0 sq mi (10.3 km²) |
| Population Density | 177/sq mi |
| Coordinates | 50.6135°N, 3.2888°W |
| Timezone | Europe/Brussels |
Precipitation & Snow
Air Quality
Earthquake History
41 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.3.
| Jun 20, 1995 | 1 km N of Ghlin, Belgium | M4.3 | 46 km | 20 km |
| Aug 29, 1992 | 4 km SSE of Cousolre, France | M4.1 | 77 km | 18 km |
| Jan 23, 2007 | 57 km ENE of Broadstairs, United Kingdom | M4.1 | 140 km | 10 km |
| Dec 14, 1991 | 3 km SSE of Longfossé, France | M4.0 | 103 km | 10 km |
| Aug 26, 1992 | 2 km WSW of Rance, Belgium | M3.9 | 87 km | 10 km |
| Jan 27, 1998 | 27 km W of Le Touquet-Paris-Plage, France | M3.8 | 148 km | 2 km |
| Jul 13, 2008 | 0 km ESE of Court-Saint-Étienne, Belgium | M3.8 | 91 km | 4 km |
| Jan 27, 1992 | 6 km SSE of Longfossé, France | M3.5 | 102 km | 10 km |
| Jul 20, 1994 | 2 km N of Rousies, France | M3.5 | 62 km | 5 km |
| Feb 13, 1997 | 26 km W of Le Touquet-Paris-Plage, France | M3.2 | 147 km | 5 km |
| Oct 25, 1998 | 6 km NNE of Montdidier, France | M3.2 | 113 km | 7 km |
| Jul 14, 2008 | 1 km SW of Boussu, Belgium | M3.2 | 41 km | 4 km |
| Jun 1, 2005 | 3 km N of Grandvilliers, France | M3.1 | 139 km | 10 km |
| Feb 27, 2005 | 1 km NW of Libercourt, France | M3.1 | 24 km | 4 km |
| Jul 20, 1994 | 1 km NE of Quévy-le-Petit, Belgium | M3.1 | 54 km | 5 km |
| May 4, 1990 | 0 km NE of Coquelles, France | M3.1 | 110 km | 10 km |
| Jul 2, 2001 | 3 km NNE of Oostduinkerke, Belgium | M3.1 | 72 km | 5 km |
| May 10, 1990 | 1 km W of Modave, Belgium | M3.1 | 141 km | 11 km |
| Nov 25, 1998 | 26 km N of Grand-Fort-Philippe, France | M3.0 | 109 km | 10 km |
| Jul 23, 1992 | 3 km ENE of Sivry, Belgium | M3.0 | 82 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tsunami History
1 tsunami recorded within 500 km. Highest wave on record: 6.0 m (20 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1858 | NORTH SEA | Unknown | 6.0 m | — | 127 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 42°F (5°C) | 2.3 in | |
| February | 39°F (4°C) | 1.7 in | Coldest, Driest |
| March | 44°F (6°C) | 2.4 in | |
| April | 48°F (9°C) | 1.9 in | |
| May | 55°F (13°C) | 2.5 in | |
| June | 60°F (15°C) | 2.7 in | |
| July | 65°F (19°C) | 2.5 in | Warmest |
| August | 64°F (18°C) | 2.1 in | |
| September | 59°F (15°C) | 2.5 in | |
| October | 52°F (11°C) | 2.7 in | |
| November | 44°F (7°C) | 2.9 in | Wettest |
| December | 40°F (4°C) | 2.6 in |
Hertain has a seasonal temperature swing of 27°F / from 39°F in February to 65°F in July. Total annual precipitation is 28.8 inches, with November being the wettest month (2.9") and February the driest (1.7").